Medicine balloon catheter system

Abstract

The invention relates to a medicine balloon catheter system. The medicine balloon catheter system involves a nick tube, a push tube, a connecting tube and a balloon catheter, wherein a threaded screw-in protrusion is arranged on the outer wall of the nick tube, a handle is arranged on the push tube, an expansion liquid inlet is formed in the handle, the other end of the push tube is in threaded connection with the connecting tube, the other end of the connecting tube is fixedly connected with the nick tube, one end of the balloon catheter communicates with the expansion liquid inlet, the otherend of the balloon catheter is provided with a balloon, and when the push tube is screwed to the end, away from the nick tube, of the connecting tube, the balloon catheter sequentially penetrates through the interiors of the push tube, the connecting tube and the nick tube, so that the balloon is located at the end, away from the connecting tube, in the nick tube; and when the connecting tube isscrewed in the direction close to the push tube, the balloon extends out of the end, away from the connecting tube, of the nick tube. According to the system, the technical problems that the balloon catheter has difficulty passing through a narrow lesion area, and an adopted pre-expansion method is difficult to operate are solved.

Description

technical field [0001] The present invention relates to the field of medical devices, and further relates to a drug balloon catheter system, in particular to a novel drug balloon catheter system suitable for urinary tract. Background technique [0002] At this stage, a balloon catheter is often introduced into the patient's body through the urethra to treat various urological stricture diseases. Due to the high degree of urethral stenosis, high tissue density, and serious compression of the urethra, the balloon catheter cannot directly pass through the stenosis. At present, before balloon catheter dilation therapy, it is necessary to use a urethral probe to pre-explore the urethra to confirm the stenosis, and at the same time use the urethral probe to pre-dilate the stenosis, which is conducive to the subsequent passage of the balloon catheter through the stenotic lesion. [0003] The process of inserting the probe through the urethra depends entirely on the experience of d...

AI Technical Summary

Problems solved by technology

This operation improves the success rate of the operation, but due to the replacement and insertion of metal probes of different sizes, the probability of injury to the urethral meatus and urethral mucosa is increased, the operation time is prolonged, and the pain of the patient during the operation is increased.

Some clinicians try to use urology sheath for pre-dilation and guidance, but because the conventional sheath is soft and cannot pass through the lesion alone, a metal probe is still needed. difficult to locate

[0005] In the related art, it is difficult for the balloon catheter to pass through the narrow lesion area, and the pre-dilation method used is difficult to operate, so far no effective solution has been given.

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